食品科学 ›› 2005, Vol. 26 ›› Issue (2): 165-169.

• 分析检测 • 上一篇    下一篇

灰化温度对测定植物样微量元素含量的影响

 成玉梅, 孙鲜明, 康业斌   

  1. 河南科技大学化工与制药学院; 河南科技大学园艺林学学院
  • 出版日期:2005-02-15 发布日期:2011-09-19

Effects of Incinerating Temperatures on Assaying Microelements in Plant Leaves

 CHENG  Yu-Mei, SUN  Xian-Ming, KANG  Ye-Bin   

  1. 1.College of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology;2.College of Horticulture and Forestry, Henan University of Science and Technology
  • Online:2005-02-15 Published:2011-09-19

摘要: 本文报道了用瓷坩埚高温灰化包菜、槲叶样品,灰化温度对测定微量Cu、Mn、Fe、Zn含量的影响。结果表明测定植物样微量Cu、Mn、Fe、Zn含量时,可以用瓷坩埚进行高温灰化,适宜灰化温度分别为450~550、450~550、450~600、450~500℃;同时测定该四种元素含量时,适宜灰化温度为450~500℃。且500℃灰化时,元素的平均回收率为96%~108%。

关键词: 瓷坩埚, 灰化温度, 植物样, 微量元素

Abstract: This paper reported that incinerating temperature effects on assaying content of Cu、Mn、Fe and Zn microelements when porcelain crucible incinerated Brassia oleracea leaves and Mongolian oak leaves were used as samples. The results indicated that the method was feasible in using porcelain crucible for incinerating of plant samples under high temperature. When assaying contents of Cu、Mn、Fe and Zn microelement. The optimum incinerating temperatures were 450~550、 450~550 、450~600、450~500℃, respectively the optimum incinerating temperature would be 450~500℃ when assaying the contents of this four microelement at the same time. The recovery rate of microelement was 96%~108% when incinerating temperature was 500℃.

Key words: porcelain crucible, incinerating temperature, plant sample microelement